Lelit Giulietta PL1SVH, Instruction Manual

Page: 33 / 88

Pag. 33
16
– DEFECTS AND MALFUNCTIONS
To be done by the end user/worker
•
Before calling service personnel, to avoid useless expenses, check whether the machine problem corresponds to
one of the cases indicated below.
MALFUNCTION CAUSE SOLUTION
Leaking from the filterholder edge. Dirty group gasket. Clean the group gasket with a brush.
Coffee dispensing time too short.
Coffee ground too coarse.
Coffee is too old. Use a finer grind.
Use new coffee.
Coffee comes out in drops.
Filter holes blocked or filter holder outlet
dirty.
Coffee ground too fine.
Clean.
Use coarser grind.
Water leak under the machine.
Discharge well clogged up.
Discharge tank hole blocked.
Clean.
Clean.
16
– DEFECTS AND MALFUNCTIONS
To be done by authorized, qualified personnel
MALFUNCTION CAUSE NOTES
Infusion time too short.
Rapid dispensing.
Coffee very bland, without cream.
(Same defects on all groups).
Coffee ground too course.
Old coffee.
This defect is associated to other secondary
symptoms which may be caused by a
number of other causes as per the previous
points. Do not adjust the machine until all
other causes have been excluded.
Infusion time too short.
Rapid dispensing.
Coffee very bland, without cream.
(Same defects on 1 group).
Group nozzle widened through use.
OR gasket in cone-shaped section leaks.
Infusion valve remains open
Filter edge broken.
The capacity of the group without filter must
be 100 cm³ in 8 ÷ 10 seconds.
Low coffee yield.
Slow dispensing.
Coffee cold and bland.
Shower dirty.
Letting water come out of the group without
the filterholder, you note thin, isolated jets
instead of one central jet.
Fast dispensing, coffee bland.
Pressure gauge pump indicates pressure
higher than 9 bar.
Pump out of calibration.
By-pass valve blocked.
Low coffee yield.
Quick dispensing.
Coffee hot and bland.
Filters with perforations widened.
Coarse grinding.
Coffee grounds in cup.
Coffee cold, bland and without cream.
Normal infusion and dispensing times.
Air bubble in thermosiphon circulation.
Check valve does not hold (with low
pressure in system).
Heat exchangers emptied.
Pressure gauge defective (shows pressures
higher than real values).
Move the lever to remove air bubble.
When touching the water tube it is warm
near to the machine.
Pressure gauge calibrated with values that
are too low.
Coffee cold in the morning at start of work.
Air in boiler. See instructions for turning the machine on.
Dispensing slow.
Coffee burnt and cold.
Cream very dark, with tendency of formation
of an “eye”.
Coffee grounds too fine.
Low pressure in pump.
Mesh filter above spout dirty.
Spout partially blocked.